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Asked by carol

15 students took a science test. the average score was 88.0. later in the day a sixteenth student took the same test and scored a 92. the teacher recalculated the class average using all 16 of the scares. by how much will the class average have increased? show your work.
12 years ago

Answers

Answered by PsyDAG
Mean = ∑x/n

88 = ∑x/15

Calculate ∑x.

Mean = (∑x+92)/16
12 years ago

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